Home / 104,659.38-144,429.21-56,912.76

Finding the Fourth Proportional to 104,659.38, 144,429.21 and 56,912.76

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Solution

The fourth proportional to 104,659.38, 144,429.21 and 56,912.76 is: 78,539.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,659.38 : 144,429.21 = 56,912.76 : x
  2. Step 2: Convert to fraction form
    104,659.38/144,429.21 = 56,912.76/x
  3. Step 3: Cross multiply
    104,659.38x = 144,429.21 × 56,912.76
  4. Step 4: Simplify right side
    104,659.38x = 8,219,864,965.72
  5. Step 5: Solve for x
    x = 8,219,864,965.72/104,659.38
  6. Step 6: Final answer
    x = 78,539.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.